23470209 has 16 divisors (see below), whose sum is σ = 39738240. Its totient is φ = 13411440.

The previous prime is 23470201. The next prime is 23470219. The reversal of 23470209 is 90207432.

It is not a de Polignac number, because 23470209 - 2³ = 23470201 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23470201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61902 + ... + 62279.

It is an arithmetic number, because the mean of its divisors is an integer number (2483640).

Almost surely, 2^23470209 is an apocalyptic number.

It is an amenable number.

23470209 is a deficient number, since it is larger than the sum of its proper divisors (16268031).

23470209 is a wasteful number, since it uses less digits than its factorization.

23470209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124197 (or 124191 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 23470209 is about 4844.6061759445. The cubic root of 23470209 is about 286.3116274956.

The spelling of 23470209 in words is "twenty-three million, four hundred seventy thousand, two hundred nine".